Float-valve.



H. P. BLEDSOE & B. F. CRAWFORD.

FLOAT VALVE.

APPLICATION PLED SEPT. 10, 1913. 1,101,394, Patented June 23, 1914.

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H. 1?'. BLEDSOE & B. P. CRAWFORD.

FLOAT VALVE.

APPLIUATION HLBD'sEPT.1o,191s.

Patented June 23,1914y 2 SHEETSSHEBT 2.

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HOWARD F. BLEIDSOE AND BENJAMIN F. CR-AXVFORD, OF ELLENSBURG, WASHINGTON.

FLOAT-VALVE.

T0 @ZZ whom t may 00m-ern Be it kno-wn that we, HOWARD F. BLEU- soE and BENJAMIN F. CRAWFORD, citizens of the United States, residing at Ellensburg in the county of Kittitas and State o Washington, have invented new and useful Improvements in Float-Valves, ofwhich the following is a specication.

This invention relates to improvements in float controlled valves and has particular application to a float valve for controlling the flow of water into lushingtanks. It is to be understood, however, that our invention in its useful application is not limited to this particular purpose.`

In carrying out the present invention, it is our purpose to provide a float controlled valve wherein, when the water has been restored to its normal level succeeding the discharge of the'water from the tank or reservoir, the valve will be closed quickly s0 as to eliminate unnecessary wear and tear on the mechanism incident tothe movement of the valve to closed position with the rise of the water and wherein the valve in its movement to closed position will be cushioned so that unnecessary shock to and vibration 0f the mechanism will be eliminated.

It is also our purpose to provide a valve of the class described which will embody in its construction among other features main and supplemental or auxiliary floats, the main float being movable through a vertical arc when at its limit of downward movement to open the valve and maintain a neutral position so that the valve will remain open as the water level within the tank is restored, the auxiliary float being connected with the irst float in such manner as to move the latter out of neutral position when the water level is restored to normal whereby the first mentioned float will be buoyed up to its normal position and close the valve with a snap.

Furthermore, we aim tov provide a float controlled valve which will embrace the desired features of simplicity, efficiency and durability, one which may be manufactured, installed and maintained at a minimum eX- pense and one which will operate positively and eectively at all times and under all conditions.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts here- Specicaton of Letters Patent.

Patented J une 1914.

Application filed September 10, 1913. Serial No. 789,201.

inafter set forth in and falling within the -ilushing tank equipped with a float valve constructed in accordancev with our present invention, the valvemechanism being shown in elevation. Fig. 2 is an enlarged view in elevation `of the valve mechanism removed from the tank, parts being shown in section. Fig. 3 is a cross sectional view on the line 3 3 of Fig. 2. Fig. 4l is a similar view on the lineH of Fig. 2. Fig. 5 is a horizontal sectional view through the valve mechanism. Fig. 6 is an enlarged perspective view of part of the'valve mechanism.

Referring now to the accompanying drawings in detail, the numeral 1 designates a flushing tank of any suitable construction.

VLeading into the tank l is a supply pipe 2 connected up with a suitable source of water supply anddisposed, in the present instance, in Va 'vertical plane and terminating adjacent to the upper end of the tank l. Suitably fastened to one side wall of the tank l adjacent to the Vupper end of the supply pipe and in communication with the latter is a casing 8 having the upper end thereof threaded eXteriorly to receive a cup-shaped cap 4 provided with a finger piece 5 formed with an aperture 6 adapted to receive a rod or the like so that the cap may be tightened and initially rotated to remove the same. In the present instance, the lower Wall of the casing 3 is formed with an opening 7 and formed with an outwardly projecting Harige 8 ceiicentrically of the opening and forming a valve seat The numeral 9 designates a discharge tube or pipe located, in this instance, in a plane parallel with the supply pipe 2 and having the upper end thereof passed through the opening 7 in the casing 8 and capable of sliding movement relatively to the supply pipe and into and out of the casing 3. Adjacent to its upper end the tube 9` is formed with an annular series of apertures 10 whereby when the upper end of the tube is moved into Ythe casing communication between the supply pipe andthe interior of the tank by way of the tube and the apertures l0 will be established, while when the tubeis moved downwardly communication between such supply pipe and the tank is out o incident to the wall of the opening 7 110 "feo closing the openings 10. The upper end of the tube or pipe 9 is closed and upon such end is mounted a disk 11 provided with a depending centrally located stud 12 designed to threadedly engage an opening formed in the center of the closed end of the tube to hold the disk in applied position. Interposed between the disk 11 and the adjacent end of the tube is a leather washer 13 while the periphery of the disk is provided with a. depending annular iange 14 surrounding the marginal edge of the leather washer and designed to prevent spreading of the latter as the washer engages the seat 8 in the downward movement of' the tube. By means of this construction, it will be seen that when the upper end of the tube is lowered or moved outwardly of thereasing 3, the openings'lO will shut ofl1 communication between the supply pipe and thetank, while the valve composed of the leather washer 13 and the disk 11 will engage the valve seat 8 and so form, in effect, a seal in order that leakage will be avoided.

The tube 9 is oat controlled, that sto say, vis elevated and lowered by means of a float-controlled by the level of the water Within the tank. YIn the present instance, a block 15 is formed with parallel openings 16, 17 through which the pipe 2`and tube 9 pass respectively. A set screw 1 8 threadedly engages an aperture formed in one end of the block and has the inner end thereof movable into the openings 16 to vbind against the supply pipe so as to holdthe block in proper position upon the pipe. Extending outwardly from one side of the block is a horizontal pivot bolt 19 upon which is rotatably mounted a disk 20 and secured upon the disk adjacent to the periphery thereof is a crank pin 21 connected through the medium of a pitman 22 with a pin 23 carried by a collar 241 surrounding the tube 9 above the block 15, and extending outwardly from the face of the block 15 yabove the bolt 19 is a pin 25 disposed within an arcuate shaped slot 26 formed inthe disk adjacent to the periphery thereof. The outer face of the disk 20 is equipped with a socket 27 carrying an outwardly extending rod 28, and with a second socket 29 arranged in the present instance at right angles to the first socket and receiving one end of a rod 30.

Upon the free end of' the rod 30 is suitably secured a float 31, while extending at right langles to and fastened to the free end of the rod 2S is a post 32 receiving a collar 33 adjustable longitudinally thereon and adapted vto be held in adjusted position by means of va set screw 34; and carrying a float 35.

In operation, assuming the tank to have been emptied by the opening of the valve controlling the outlet pipe, the rod 30 carrying the float 31 will-be in a vertical plane while the rod 28 carrying the float 35 will be in a horizontal plane. As the floats move to this position, incident to the discharge of water from the tank, the disk 20 is rotated and, through the medium of the pitinan 22 and collar 24, raises the tube or'pipe 9 so that the valve composed of the leather washer 13 andthe disk 11 disengages the seat 8 while the apertures 10 in the upper end of the tube are uncovered'so that the water from the supply pipe will pass into the tank 1. As the water rises within the tank 1, the iioat 31 remainsY inactive incident to the same being in neutral position and balanced by the rising water. How? ever, as the water reaches the float 35, the

latter is elevated and so voverbalances the float 31 with the effect that the latter float is buoyed up by t-he water and rotates the disk 20 and through the medium of the pitman 22 draws the tube 9 down so thatthe apertures 10 are closed and the valve seated thereby cutting Voff the ow of water to the tank, the pin 25 and slot 26 limiting the movement of the ldisk under the action of the floats and so preventing vibration Vof the mechanism incident to the valve engaging its seat. f Y

From the foregoingV description taken Vin connection with the accompanying draw- `ings,`the construction and mode'of operation of our improved float valve will be readily apparent.

It will be seen that the valve ywill be closed quickly and with a snap, incident to the float 31 remaining submerged inthe water until the latter has reached its normal level and then rising tothe surface of the water. v

While we have herein shown and def to the end within saidcasing, said discharge pipe disposed in Vparallelism with said supply pipe, a block xed to Asaid supply pipe, a disk rotatably mounted upon said block, a connection between said` disk and Vdischarge pipe, a float connected with said disk and adapted to dropV and rotate the'lat'ter ioo` as the water level falls whereby the dis-1 charge pipe will be moved into the casing to establish communication between 'the same vand the supply pipe andiriseas the water level is restored whereby the disk will be rotated to move the discharge pipe out of the casing and so cut oli' communication with the supply pipe, and means associated with said block and disk and acting to limit the movement of the disk under the action of said float.

2. In a float valve, a supply pipe, a casing in communication with said pipe and formed with an opening, a discharge pipe slidably mounted within said opening and having apertures formed therein adjacent to the end within said casing, said discharge pipe disposedy in parallelism with said supply pipe, a block fixed to said supply pipe, a disk rotatably mounted upon said block and formed with a slot, a pin carried by said block and disposed within said slot and acting to limit the turning movement of the disk, a connection between 20 `drop and rotate the latter as the water level falls whereby the discharge pipe will be moved into the casing to establish communif 1 cation between the same and the supply 1 e. p n testimony whereof we affix our signatures in presence of two witnesses.

HOWARD F. BLEDSOE. BENJAMIN F. CRAWFORD. Witnesses S. I. BOWERS, LENOX WILSON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

